* Correct wording, category for starter conversion
- Now a flowchart (and a renamed label)
- More explicit wording as per
https://github.com/hendricius/the-sourdough-framework/issues/234
* Fix warnings from make check
The one I am 100% sure are mistakes
* Review starter type chapter
- Add some new sections
- fine tune tables
- some typos/new paragraphs
* Fix typos in sourdough starter types
* Simplify liquid conversion flowchart
* Simplify stiff conversion flowchart
* Fine tune liquid conversion flowchart
* Update some of the images
* Improve explanation of conversion
* Update explanation for stiff starter conversion
* Update fall note
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Co-authored-by: Hendrik Kleinwaechter <hendrik.kleinwaechter@gmail.com>